Put the hay down where the goats can get it, thats my philosophy. If you want to get newbies interested in classical music, make it easy for them to get at. The Seattle Symphonys kicking off its season tonight with a cheap and informal sampler of works theyll play this season: individual movements from Beethovens Fifth and other symphonies, with show-off pieces like Strausss Don Juan. Come for a tasteits just $10then come back later this season if you like for the whole piece. Saturday night is the official opener, neither cheap nor informal: a gala with star cellist Yo-Yo Ma and an all-French program (if you count Gershwins An American in Paris). Various combos of dinner, drinks, and dancing are available in packages that start at $450 (tickets for the concert alone are sold out).